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Coulometric Titration of Sodium Thiosulfate with Iodine

Coulometric Titration of Sodium Thiosulfate with Iodine
Coulometric Titration of Sodium Thiosulfate with Iodine

In this experiment you will determine the concentration of Na2S2O3 present in a solution. You will place a known number of drops of this solution into a vessel, and then add to this an excess of potassium iodide (KI) and a few drops of starch solution. Two electrodes will then be inserted into the solution and the electrodes will be connected to a variable voltage source (9V battery and a potentiometer, see Figure 1). A milliameter (mA) will also be included in the circuit to measure the current.

Kit contains enough materials for 15 groups.

Kit Includes:

  • 2 x 50 ml Sodium Thiosulfate, 0.001M Solution
  • 1 x 15 ml Potassium Iodide, 0.1% Solution
  • 1 x 10 ml Starch, 1% Solution
  • 4 x 25 ml Sulfuric Acid, 1.0M Solution UN2796
  • 30 Vials
  • 30 3-Hole Plastic Lids
  • 15 Drop-Burettes
  • 15 Plastic Pipettes
  • 60 Electrodes
  • 15 Microspatulas
  • 60 Electrical Connecting Wires
  • 15 Comboplates

Please note that the pictures may show items not included in this kit, the pictures are there to show kit functionality. Please refer to the product details above for more information on the contents of this kit.

DOT: Small quantity exemption 173.4. THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only

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RETURNS NOT ACCEPTED: To ensure no contamination, we have a NO RETURN policy for this product. Absolutely NO RETURNS even if the box / container is unopened.

Catalog # IS6110
Shipping Weight 16.00 lbs
Our price: $524.25